​x
 
<html>
<body>
​
<script type="text/javascript">
​
function createCar(sColor,iDoors,iMpg) {
  var oTempCar = new Object;
  oTempCar.color = sColor;
  oTempCar.doors = iDoors;
  oTempCar.mpg = iMpg;
  oTempCar.showColor = function() {
    document.write(this.color);
  };
  return oTempCar;
}
​
var oCar1 = createCar("red",4,23);
var oCar2 = createCar("blue",3,25);
​
oCar1.showColor();
document.write("<br />")
oCar2.showColor();
​
</script>
​
</body>
</html>
​